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photo credit Nasa / Goddard Space Flight Center / Reto Stöckli By Joseph Ayton-Delaney The Solar System thanks for watching Mercury The Sun The Sun is a star at the centre of our solar System. The 8 planets orbit the Sun at different speeds and in different directions. This is our Solar System Mercury Mercury is the smallest planet and the closest planet to the Sun (57,910,000km). It takes 88 Earth days to orbit the sun. One Mercury day is 58 Earth days, 15h and 30 mins. the maximum temperature is 465˚C. Venus Venus is the closest planet, in size, to Earth. One Venus day is 116 Earth days and 18 hours. The Venus surface is extremely dry. Humans could not live on Venus because the atmosphere is full of 96% of carbon dioxide and the rest is nitrogen. It orbits 108,200,000km from the sun. Earth Earth is the planet that we humans live on. It's the 5th largest planet. Earth's atmosphere is full of 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide and little amounts of other gases. Its crust is about 20-80km thick. Mars Mars is fourth closest planet from the sun and is also the second smallest our solar system. The length of a Mars day is just 40 mins longer than an Earth day. It is named after the roman god of war. It is often referred to as "The Red Planet" because of its surface colour. Jupiter Jupiter is the largest planet in our solar system. It is the fourth brightest planet and is known as a gas giant. it is about 778,500,000 km from the Sun and is named after the king in Roman mythology. Saturn Saturn is the second biggest plant in our solar system. One Saturn day is 10 hours and 39 minutes. It can fit 760 Earth's inside of it and is roughly 95 times earth's mass. It also has many rings around it. Uranus Uranus like Saturn has rings around it. It was discovered on 13th March 1781 by William Herschel. Only one spacecraft has visited Uranus, Voyager 2 on 24th January 1986. Uranus has 27 named moons. Neptune Neptune is the farthest planet from the sun. It is the third largest in mass and is also a gas giant. It takes almost 165 earth years to orbit the Sun. In 2011, Neptune finished its first orbit of the the sun since 1846. Thanks for watching I hope you found out something you didn't know